Analog Products

Overview

The ISL26132 and ISL26134 are complete analog front ends for high resolution measurement applications. These 24-bit Delta-Sigma Analog-to-Digital Converters include a very low-noise amplifier and are available as either two or four differential multiplexer inputs. The devices offer the same pinout as the ADS1232 and ADS1234 devices and are functionally compatible with these devices. The ISL26132 and ISL26134 offer improved noise performance at 10Sps and 80Sps conversion rates. The on-chip low-noise programmable-gain amplifier provides gains of 1x/2x/64x/128x. The 128x gain setting provides an input range of ±9. 766mVFS when using a 2. 5V reference. The high input impedance allows direct connection of sensors, such as load cell bridges to ensure the specified measurement accuracy without additional circuitry. The inputs accept signals 100mV outside the supply rails when the device is set for unity gain. The Delta-Sigma ADC features a third order modulator providing up to 21. 6-bit noise-free performance. The device can be operated from an external clock source, crystal (4. 9152MHz typical), or the on-chip oscillator. The two channel ISL26132 is available in a 24 Ld TSSOP package and the four channel ISL26134 is available in a 28 Ld TSSOP package. Both are specified for operation over the automotive temperature range (-40°C to +105°C).

ISL26132_ISL26134 Functional Diagram
ISL26132_ISL26134 Functional Diagram
  • Up to 21.6 Noise-free bits
  • Low noise amplifier with gains of 1x/2x/64x/128x
  • RMS noise: 10.6nV @ 10Sps (PGA = 128x)
  • Linearity error: 0.0002% FS
  • Simultaneous rejection of 50Hz and 60Hz (@ 10Sps)
  • Two (ISL26132) or four (ISL26134) channel differential input multiplexer
  • On-chip temperature sensor (ISL26132)
  • Automatic clock source detection
  • Simple interface to read conversions
  • +5V Analog, +5 to +2.7V digital supplies
  • Pb-Free (RoHS compliant)
  • TSSOP packages: ISL26132, 24 pin; ISL26134, 28 pin

Applications

  • Weigh Scales
  • Temperature Monitors and Controls
  • Industrial Process Control
  • Pressure Sensors

Documentation

Title
Type 		Date
ISL26132, ISL26134 Datasheet
PDF 1.27 MB 		Datasheet
Analog ICs Brochure
PDF 5.20 MB 日本語 		Brochure
PIN19028 - Q3 Cy 19 Price Increase Notice
PDF 208 KB 		Price Increase Notice
ISL26134AV28EV1Z User Guide
PDF 1.74 MB 		Manual - Development Tools
PCN11113A - Manufacturing Site Change for Assembly of the Listed Intersil TSSOP Packaged Products - Carsem-M (CAM) - Ipoh, Malaysia
PDF 121 KB 		Product Change Notice
PCN11113 - Manufacturing Site Change for Assembly of the Listed Intersil TSSOP Packaged Products - Carsem-M (CAM) - Ipoh, Malaysia
PDF 120 KB 		Product Change Notice
DAQ on a Stick, Atmel Thermocouple User Guide
PDF 908 KB 		Manual - Development Tools
AN9675: A Tutorial in Coherent and Windowed Sampling with A/D Converters
PDF 503 KB 		Application Note
AN002: Principles of Data Acquisition and Conversion
PDF 1.08 MB 		Application Note
AN9705: A Theoretical View of Coherent Sampling
PDF 287 KB 		Application Note
10 items

Design & Development

Software Downloads

Title
Type Date
ISL261xxAV28EV1Z Software Installer v4
EXE 19.04 MB 		Library
1 item

ECAD Models

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    		TSSOP Reel 2500
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